(;GM[1]FF[4]SZ[19]
GN[Ko defense]
PC[http://senseis.xmp.net/?Corner12ConnectionValue]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?Corner12ConnectionValue

Ko defense]
PL[B]

AB[ac][ad][bd][cd][dd][ed][fd]
AW[ab][bc][cc][dc][ec][fc]
CR[ab]

;B[bb]C[B1]MN[1]
;W[ba]C[W2]MN[2]

;CR[ab]
)
